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Finding the Fourth Proportional to 135,078.88, 202,618.32 and 51,953.44

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Solution

The fourth proportional to 135,078.88, 202,618.32 and 51,953.44 is: 77,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,078.88 : 202,618.32 = 51,953.44 : x
  2. Step 2: Convert to fraction form
    135,078.88/202,618.32 = 51,953.44/x
  3. Step 3: Cross multiply
    135,078.88x = 202,618.32 × 51,953.44
  4. Step 4: Simplify right side
    135,078.88x = 10,526,718,029.65
  5. Step 5: Solve for x
    x = 10,526,718,029.65/135,078.88
  6. Step 6: Final answer
    x = 77,930.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.